AD8342ACPZ-REEL7

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RF Mixers

The AD8342ACPZ-REEL7 is a high performance, low power microwave/RF mixer that is ideal for a variety of mixing applications. It is designed to handle signals up to 8GHz with very low harmonic distortion. The mixer also offers excellent noise figure and isolation performance. This makes it suitable for a variety of applications such as high-dynamic range receivers, RADAR, and test and measurement instrumentation.

The AD8342ACPZ-REEL7 has a nominal conversion loss of 10 dB and is capable of operating with a signal level up to +13 dBm. The mixer offers extremely low noise figure of 2 to 6 dB, making it well-suited for very sensitive receiver applications. The mixer also offers excellent isolation between ports, with a typical isolation of over 20 dB. The mixer includes an integrated voltage-controlled attenuator for additional fine-tuning of the received signal strength.

Application Field

The AD8342ACPZ-REEL7 is designed for use in a variety of applications, including point-to-point and point-to-multipoint digital and analog wireless communication systems, RADAR systems, medical instrumentation, and test and measurement equipment. The low power consumption and wide frequency range make it well-suited for use in portable and low-power systems.

The mixer’s wide dynamic range and low noise figure make it suitable for use in receivers that require a high signal to noise ratio. The mixer also offers excellent isolation performance between ports, making it suitable for applications involving simultaneous transmission and reception. Additionally, the integrated voltage-controlled attenuator further increases the mixer’s versatility, allowing the user to adjust the gain of the received signal.

Working Principle

The AD8342ACPZ-REEL7 is a double-balanced mixer circuit that combines two input signals, producing an output signal with the sum and difference of the two frequencies. The mixer is composed of four active devices—two balanced pairs of N-channel MOSFETs and two equal-valued shunt capacitors—arranged in a bridge circuit. The two input signals are coupled to the inputs of the mixer through a pair of transformers, or an untransformed connection. The two signals are combined in the mixer to produce an output signal that contains the sum and difference of the two frequencies.

The input signals are coupled to the outputs of a differential amplifier, which amplifies the differential signal. This differential signal is then fed to the gate of the MOSFETs. As the MOSFETs are turned on, charge from the input signals is deposited on the capacitor plates, producing a voltage in the mixer circuit. The output of the mixer contains both the sum and difference of the input frequencies, which can be separated using band-pass filters.

The AD8342ACPZ-REEL7 includes an integrated voltage-controlled attenuator (VCA) for additional gain control of the received signal. The VCA can be used to reduce the gain of the received signal to prevent saturation of the mixer, as well as to increase the signal-to-noise ratio of the received signal. The VCA also provides isolation between the input ports to reduce the effect that high-powered signals will have on weaker signals.

The AD8342ACPZ-REEL7 is a versatile, high-performance mixer due to its low conversion loss, excellent isolation between ports, and integrated VCA. It is well-suited for a variety of wireless communication systems that require high dynamic range and low noise figure. The mixer is also suitable for use in RADAR systems, medical instrumentation, and test and measurement equipment.

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